The silicone bumpers and dampeners are for musicians looking to practice without disturbing others. These accessories fit snugly on your instrument, ensuring a secure fit and effective noise cancellation. Their flexible design allows for easy installation and removal, making them a convenient addition to any musician's toolkit. Features -Color:Blue -Material:Silicone -Size:0.50X0.50X0.50cm/0.20X0.20X0.20in -Durability: crafted from resilient silicone, these bumpers are built to withstand wear and tear, ensuring longterm use for your french horn -Comfort: the flat design offers a fit, improving comfort and precision during play -Silent practice: featuring advanced mute , these bumpers minimize practice noise, for use in noisesensitive environments -Professional: designed for tenor horns, these bumpers meeting the demands of professional players -Convenience: no tools are required for installation, making it easy for musicians to adjust their instrument on the go Package list: 20 x horn accessories